Great Job...
Video 3: "Algebra I"
I. Before you watch the video answer the following questions.
The title of the video is "Algebra I"
What do you think this video will be about? I think that this video is about the operation of equations or numbers starting from the rules of the algebra.
1. Mr. Mc Call is solving three types of equations in this video. Which are those types of equations? In the first equation he is solving an equation with a variable on one side with a fraction, in the second he is solving an equation with variables on both sides using the distributive property and finally in the third that is the most difficult he is solving an equation with multiple variables for one of the variables.
2. What are the two keys he mentions for solving any equation? The first key is the inverse, in this case any number plus the inverse equal zero.
The second key is the reciprocal, in this case is any number multiply the reciprocal equal one. For example, reciprocal of 5 is 1/5.
3. a. Mention the steps he takes to solve the 1st problem. 1.He searches who is the variable
2.He founds the inverse of -2 (negative two), and he added the inverse number on both sides of equality because 2+(-2)=0.
3.He founds the reciprocal of (-1/5), and he multiplies this reciprocal on both sides of equality because (-1/5) multiplied by (-5/1) is equal one.
4.Finally the X is equal to negative eighty. b. What kind of equation is this one? This equation is with a variable on one side with a fraction.
4. a. Mention the steps he takes to solve the 2nd problem. 1.He searches who is the variable
2.He solves 4(x-5) with the property distributive.
3.He places all the variables of the same side and the constants of the other side of the equality.
4.He founds the reciprocal of 5, and he multiplies this reciprocal on both sides of equality because 5 multiplied by (1/5) is equal one.
5.Finally the X is equal to negative eighty divided by five.
b. What kind of equation is this one? This equation is with variables on both sides using the distributive property.
5. a. Mention the steps he takes to solve the 3rd problem. 1.He searches who is the variable
2.He founds the inverse of 2l, and he added the inverse number on both sides of equality because 2l+(-2l)=0.
3.He founds the reciprocal of 2, and he multiplies this reciprocal on both sides of equality because 2 multiplied by (1/2) is equal one.
4.Finally the X is equal to P divided by two minus l.
b. What kind of equation is this one? This equation is with multiple variables for one of the variables.
6. a. Mention the steps he takes to solve the 4th problem. 1.He searches who is the variable
2.He founds the reciprocal of (1/d), and he multiplies this reciprocal on both sides of equality because (1/d) multiplied by d is equal one.
3.He founds the inverse of C, and he added the inverse number on both sides of equality because C+(-C)=0.
4.Finally the X is equal to P divided by two minus l.
b. What kind of equation is this one? This equation is with multiple variables for one of the variables with a fraction.
c. What’s the difference between problem 3 and problem 4? The differences are that:
In the third video the equation is lineal while in the fourth video the equation has a fraction.
The third video has tree variables while the fourth video has four variables.
7. Did you like the video? Yes, I think that the video is very pleasant and interactive. For my pronunciation of Mr. Mc Call is very good.
8. What new things did you learn? As for the form of solving the equations didn't learn anything new, because these equations teach them to us in primary. But, I learned the translation of something words and its pronunciation.
Great Job...
Video 3: "Algebra I"
I. Before you watch the video answer the following questions.
The title of the video is "Algebra I"
What do you think this video will be about?
I think that this video is about the operation of equations or numbers starting from the rules of the algebra.
Mention five words you think you might listen to in the video.
· Equation
· Number
· Negative
· Positive
· Plus.
II. Now click on the following link and watch the video. While watching, please answer the following questions:
http://link.brightcove.com/services/player/bcpid1842754532?bctid=5254426001
Image taken from: http://www.ehow.com/how_2363893_solve-algebraic-equations.html on August 12th. 2009
1. Mr. Mc Call is solving three types of equations in this video. Which are those types of equations?
In the first equation he is solving an equation with a variable on one side with a fraction, in the second he is solving an equation with variables on both sides using the distributive property and finally in the third that is the most difficult he is solving an equation with multiple variables for one of the variables.
2. What are the two keys he mentions for solving any equation?
The first key is the inverse, in this case any number plus the inverse equal zero.
The second key is the reciprocal, in this case is any number multiply the reciprocal equal one. For example, reciprocal of 5 is 1/5.
3. a. Mention the steps he takes to solve the 1st problem.
1. He searches who is the variable
2. He founds the inverse of -2 (negative two), and he added the inverse number on both sides of equality because 2+(-2)=0.
3. He founds the reciprocal of (-1/5), and he multiplies this reciprocal on both sides of equality because (-1/5) multiplied by (-5/1) is equal one.
4. Finally the X is equal to negative eighty.
b. What kind of equation is this one?
This equation is with a variable on one side with a fraction.
4. a. Mention the steps he takes to solve the 2nd problem.
1. He searches who is the variable
2. He solves 4(x-5) with the property distributive.
3. He places all the variables of the same side and the constants of the other side of the equality.
4. He founds the reciprocal of 5, and he multiplies this reciprocal on both sides of equality because 5 multiplied by (1/5) is equal one.
5. Finally the X is equal to negative eighty divided by five.
b. What kind of equation is this one?
This equation is with variables on both sides using the distributive property.
5. a. Mention the steps he takes to solve the 3rd problem.
1. He searches who is the variable
2. He founds the inverse of 2l, and he added the inverse number on both sides of equality because 2l+(-2l)=0.
3. He founds the reciprocal of 2, and he multiplies this reciprocal on both sides of equality because 2 multiplied by (1/2) is equal one.
4. Finally the X is equal to P divided by two minus l.
b. What kind of equation is this one?
This equation is with multiple variables for one of the variables.
6. a. Mention the steps he takes to solve the 4th problem.
1. He searches who is the variable
2. He founds the reciprocal of (1/d), and he multiplies this reciprocal on both sides of equality because (1/d) multiplied by d is equal one.
3. He founds the inverse of C, and he added the inverse number on both sides of equality because C+(-C)=0.
4. Finally the X is equal to P divided by two minus l.
b. What kind of equation is this one?
This equation is with multiple variables for one of the variables with a fraction.
c. What’s the difference between problem 3 and problem 4?
The differences are that:
In the third video the equation is lineal while in the fourth video the equation has a fraction.
The third video has tree variables while the fourth video has four variables.
7. Did you like the video?
Yes, I think that the video is very pleasant and interactive. For my pronunciation of Mr. Mc Call is very good.
8. What new things did you learn?
As for the form of solving the equations didn't learn anything new, because these equations teach them to us in primary. But, I learned the translation of something words and its pronunciation.